class.ilAppEventHandler.php

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<?php
/*
        +-----------------------------------------------------------------------------+
        | ILIAS open source                                                           |
        +-----------------------------------------------------------------------------+
        | Copyright (c) 1998-2006 ILIAS open source, University of Cologne            |
        |                                                                             |
        | This program is free software; you can redistribute it and/or               |
        | modify it under the terms of the GNU General Public License                 |
        | as published by the Free Software Foundation; either version 2              |
        | of the License, or (at your option) any later version.                      |
        |                                                                             |
        | This program is distributed in the hope that it will be useful,             |
        | but WITHOUT ANY WARRANTY; without even the implied warranty of              |
        | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               |
        | GNU General Public License for more details.                                |
        |                                                                             |
        | You should have received a copy of the GNU General Public License           |
        | along with this program; if not, write to the Free Software                 |
        | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. |
        +-----------------------------------------------------------------------------+
*/

class ilAppEventHandler
{
        function __construct()
        {
                // this information should be determined by service/module
                // xml files in the future
                $this->listener["Services/News"] = array("Modules/Forum");
                $this->listener['Modules/Group'] = array('Services/Calendar');
                $this->listener['Modules/Session'] = array('Services/Calendar');
                $this->listener['Modules/Course'] = array('Services/Calendar','Services/WebServices/ECS','Services/ContainerReference');
                $this->listener['Modules/Category'] = array('Services/ContainerReference');
                $this->listener['Modules/RemoteCourse'] = array('Services/WebServices/ECS');
                $this->listener["Services/Object"] = array("Services/Tagging");
        }
        
        
        function raise($a_component, $a_event, $a_parameter = "")
        {
                if (is_array($this->listener[$a_component]))
                {
                        foreach ($this->listener[$a_component] as $listener)
                        {
                                // Allow listeners like Services/WebServices/ECS
                                $last_slash = strripos($listener,'/');
                                $comp = substr($listener,0,$last_slash);
                                $class = 'il'.substr($listener,$last_slash + 1).'AppEventListener';
                                $file = "./".$listener."/classes/class.".$class.".php";
                                
                                // detemine class and file
                                #$comp = explode("/", $listener);
                                #$class = "il".$comp[1]."AppEventListener";
                                #$file = "./".$listener."/classes/class.".$class.".php";
                                
                                // if file exists, call listener
                                if (is_file($file))
                                {
                                        include_once($file);
                                        call_user_func(array($class, 'handleEvent'), $a_component, $a_event, $a_parameter);
                                }
                        }
                }
        }
}
?>